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Subject: Re: A notion about EGTB probes

Author: Robert Hyatt

Date: 19:37:36 04/16/04

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On April 16, 2004 at 16:40:49, Dann Corbit wrote:

>Why not probe memory-resident bitbase EGTB files for every non-pv node and
>Nalimov (or other advanced EGTB) probes for every pv node?

How do you know which is which, before the fact???

>
>If it is not a PV node, then we don't really care what the move to make is.  And
>if we get a fail high on a bitbase probe, it will get researched as a PV node
>anyway.
>
>It seems like it would cut EGTB probes to 1/30 or so of probing all the time,
>and the probes would always be where they are needed the most.

Searching the PV takes over 1/2 of the time for Crafty, in most cases.  Your
savings would be far lower than 1/30.  Probably not even 1/2..

>
>Have others already tried this?



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